Two-Piece Strapping Tool

A two-piece strapping tool for tensioning a strap around a load, adhering the strap onto itself, and cutting a feed end of the strap, comprising:

• a powered sealer;
• a manual feedwheel tensioner, wherein the manual feedwheel tensioner comprises a frame having a support leg, a base, and an opening defined by a distance between the support leg and the base, and wherein the manual feedwheel tensioner is configured to matingly receive the powered sealer in the opening;
• a handle pivotally mounted to the frame;
• a pinion gear rotatably mounted to the handle;
• a drive pawl mounted to the handle and configured to engage the pinion gear;
• a feedwheel shaft;
• a tension gear mounted on the feedwheel shaft;
• and
• a least one retaining pawl mounted to the frame and configured to engage the feedwheel shaft;
• a drive mechanism mounted to the frame, the drive mechanism having a rotatable feedwheel configured to engage the upper portion of the overlapping portion of the strap and to cause the upper portion of the overlapping portion of the strap to move relative to the lower portion of the overlapping portion of the strap;
• a channel formed in the frame and configured to accept the overlapping portion of the strap;
• and
• a tension gripper mounted on a bottom surface of the channel and aligned with the feedwheel and configured to engage the lower portion of the overlapping portion of the strap and to maintain the lower portion of the overlapping portion of the strap in a stationary position relative to the upper portion of the overlapping portion of the strap;
• wherein the handle is operatively connected to the drive mechanism whereby the handle drives the feedwheel and causes it to rotate, and wherein rotation of the feedwheel causes the strap to tighten around the load,
• wherein the pinion gear is configured to engage the tension gear and cause the tension gear to rotate upon rotation of the pinion gear, and wherein the tension gear is configured to cause the feedwheel shaft to rotate upon rotation of the tension gear, and
• wherein the drive pawl drives the pinion gear in a direction, and wherein the at least one retaining pawl prevents the feedwheel shaft from rotating in a direction.

A two piece strapping tool for tensioning a strap around a load, adhering the strap onto itself, and cutting a feed end of the strap, comprising:

• a manual tensioner;
• and
• a powered sealer;
• wherein the tensioner comprises a frame having a support leg, a base, and an opening defined by a distance between the support leg and the base, and wherein the tensioner is configured to matingly receive the sealer in the opening, and
• wherein the sealer comprises a housing having a cutting assembly mounted thereto, and wherein the sealer is configured to engage an overlapping portion of the strap, the overlapping portion of the strap having an upper portion and a lower portion, while at least a portion of the sealer is disposed in the opening of the tensioner,
• wherein the sealer comprises a vibrational-type weld assembly driven by a motor, the vibrational-type weld assembly including a piston disposed in a cavity formed in the housing, a vibrator arm disposed in the cavity and connected to the piston, an upper weld gripper mounted to the vibrator arm, a base plate mounted to the housing of the sealer and disposed in alignment with the upper weld gripper, and a handle operatively connected to the piston and configured to move the piston within the cavity;
• wherein the upper weld gripper and the base plate are configured to accept and engage the overlapping portion of the strap therebetween, and the motor is operatively connected to the vibrator arm by an eccentric shaft, and the vibrator arm is configured to vibrate the upper weld gripper when the motor is activated.